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Old 12-19-2017, 04:24 PM   #1
midnightrider78
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Question Correctly wiring electric choke?

Carb on my '72 C20 w/402 needs gone thru as of a couple days ago.
I am in a bit of a jam with the truck outside, miles from my garage and the weather being what it is this time of year in Iowa. It's supposed to get significantly colder and probably snow by the end of the week.
I found a really good deal on a rebuilt Qjet that is supposed to be identical except that it has an electric choke. It should be here tomorrow.
The tech I spoke to said I could hook the choke wire to the coil temporarily, just to get it home.

My question is: What is the appropriate, permanent way to connect this?

Someday I will rebuild the original carb, but I have other things that are more important to deal with in the immediate future.
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Old 12-19-2017, 04:37 PM   #2
harpo231
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Re: Correctly wiring electric choke?

Off unfused ign on fuse block
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Old 12-19-2017, 05:12 PM   #3
wilkin250r
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Re: Correctly wiring electric choke?

Is the electric choke on the Qjet similar to the Edelbrock?

I can explain the Edelbrock electric chokes. They have a coiled bi-metal spring inside, when you apply electricity, the spring will heat up (slowly) and uncoil (slowly). It is powered by a switched power source (only on when the key is on, NOT a constant power source)

Since it happens slowly, the theory is that when you first get in and turn your key to start your car, the spring inside the choke is cold, and the choke is closed. When the car starts running, power begins to flow through the spring inside the choke, warming it up, the spring uncoils, and the choke opens up. It is designed to open up at roughly the same rate the engine warms up and no longer needs the choke. Electricity continues to flow through the spring the entire time the engine is running, keeping the spring warm and the choke open.

I believe the Qjet works the same way. So really, all you need is ANY power source that is on only when the ignition key is on.
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Old 12-19-2017, 08:40 PM   #4
midnightrider78
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Re: Correctly wiring electric choke?

Quote:
Originally Posted by wilkin250r View Post
Is the electric choke on the Qjet similar to the Edelbrock?
Yes, I believe it is the same.
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Old 12-19-2017, 08:43 PM   #5
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Re: Correctly wiring electric choke?

have most of a roll of 14 ga wire already. Is that too heavy?
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Old 12-20-2017, 01:40 AM   #6
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Re: Correctly wiring electric choke?

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Originally Posted by midnightrider78 View Post
have most of a roll of 14 ga wire already. Is that too heavy?
No such thing. You'll be fine with 14.
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